public class BookTest {

    public static void main(String[] args) {
        //
        Book xwz = new Book("小王子",  25, "童话故事","万叶");
        System.out.println(xwz.author);
        System.out.println(Book.publish);
        Book sql = new Book("mysql入门到放弃", 230, "科幻", "魈宝");
        System.out.println(Book.publish);
        System.out.println(sql.author);


    }
}
